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Knowledge Cats Dirty Minds
Food Chairs Floors

Knowledge

Facts, science and history of optical illusions.
See all the articles or scroll down to see what you came for.

Expanding Black Hole Illusion

Mind-blowing facts about optical illusions

Billie Eilish drawn in 3D by Stephan Pabst

Anamorphic optical illusions

Squirrel Stereogram

Stereograms

Coiled Snake

coiled snake mushroom

Source: Shutterstock

The coiled snake in this stock photo is just a bunch of mushrooms.

The Sarcodon Imbricatus is commonly known as a shingled or scaly hedgehog mushroom, It has a bitter taste, but is edible and found in different cuisine around the world. However it looks much more like a snake than a hedgehog.

More optical illusions:

Realistic Painting
Wireless Bird
Missing pixels
Goal perspective
Skywalker
Long-haired Dog
Big Dog
What Big Teeth you Have
  • Pareidolia
  • Physical illusions
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cracked wall caused by snake

Cracked Wall

Snakes

upskirt photo or pedicure?

Upskirt

a dirty mind